... Fireproof, Sound-Absorbing Description of Goods:1, Name : light steel keel2, Brand:TONGBAO3, Shape: C Profiled or U ... requirements Other Products Available:38 light steel main channel,50 light steel main channel,60 light steel main channel,75 stud,100 stud, ... 150 stud.50 track,75 track,100 track and 150 track light steel ...